CVE-2026-31673

HIGH

In the Linux kernel, the following vulnerability has been resolved: af_unix: read UNIX_DIAG_VFS data under unix_state_lock Exact UNIX diag lookups hold a reference to the socket, but not to u->path. Meanwhile, unix_release_sock() clears u->path under unix_state_lock() and drops the path reference after unlocking. Read the inode and device numbers for UNIX_DIAG_VFS while holding unix_state_lock(), then emit the netlink attribute after dropping the lock. This keeps the VFS data stable while the reply is being built.

CVSS v3.1 Score

7.8
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Published: 4/25/2026Modified: 10/19/2026

Related Intelligence (1)

CRITICALVulnerability

Siemens SIMATIC S7-1500 TM MFP

<p><a href="https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-295-16.json"><strong>View CSAF</strong></a></p> <h2>Summary</h2> <p><strong>Multiple vulnerabilities have been identified in the additional GNU/Linux subsystem of the SIMATIC S7-1500 TM MFP V1.1.1. Siemens is preparing fixes and recommends specific mitigations for products where fixes are not or not yet avail

CVE-2023-52927CVE-2023-53292
CISA Advisories

References (9)

https://git.kernel.org/stable/c/0c739f3785f84af695952c2bac8be2f45082c9b8Patchhttps://git.kernel.org/stable/c/39897df386376912d561d4946499379effa1e7efPatchhttps://git.kernel.org/stable/c/4f6a8f10182c3a9d22e8eb183957ae7ade9e4bf7https://git.kernel.org/stable/c/900a4e0910e98b8caef117d5df00471fa438dcf9Patchhttps://git.kernel.org/stable/c/b9232421a77a649c9376c99fdfc8cb7f79cad34cPatchhttps://git.kernel.org/stable/c/bdf206e740bf2919d818f132c8c9cc7ed91d11c0Patchhttps://git.kernel.org/stable/c/c3ec44ab4526bbc4b6c9fc845af86488244f4c9bhttps://git.kernel.org/stable/c/e7339db13b9ddb63417b12da55fd6191e59f7442https://cert-portal.siemens.com/productcert/html/ssa-784472.html